Rated to withstand 350 lbs Perforated steps for slip resistance Handrails for operator safety Folds to 10 degrees for compact storage Heavy duty welded steel ladders are rated to withstand 350 lbs. Folds to only 10D for compact storage. Rolling ladders lock in folded or open position for operator safety. These steel ladders have a 58 degree slope with 7D steps for easy climbing. Meets ANSI 14.2 standards.